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Topology change count - Number of times topology has changed for the CST.
Time since topology change - The time in seconds since the topology of the
Topology change - The value of the topology change parameter for the switch indicating if
a topology change is in progress on any port assigned to the selected MST instance. It
takes a value of True or False.
Designated root - The bridge identifier of the root bridge. It is made up from the bridge
priority and the base MAC address of the bridge.
Root Path Cost - Path Cost to the Designated Root for the CST.
Root Port - Port to access the Designated Root for the CST.
Max Age - Path Cost to the Designated Root for the CST.
Forward Delay - Derived value of the Root Port Bridge Forward Delay parameter.
Hold Time - Minimum time between transmission of Configuration BPDUs.
CST Regional Root - Priority and base MAC address of the CST Regional Root.
CST Path Cost - Path Cost to the CST tree Regional Root.
4.3.8.3 Spanning Tree MST Configuration/Status
Selection Criteria
MST ID - Create a new MST which you wish to configure or configure already existing
MSTs.
Configurable Data
MST ID - This is only visible when the select option of the MST ID select box is selected.
The ID of the MST being created. Valid values for this are between 1 and 4094.
Priority - The bridge priority for the MST instance selected. The bridge priority is set in
multiples of 4096. For example if the priority is attempted to be set to any value between 0
Figure 4-56 Spanning Tree CST Configuration/Status
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